Observation of structural anisotropy and the onset of liquidlike motion during the nonthermal melting of InSb.

Observation of structural anisotropy and the onset of liquidlike motion during the nonthermal melting of InSb.

The melting dynamics of laser excited InSb have been studied with femtosecond x-ray diffraction. These measurements observe the delayed onset of diffusive atomic motion, signaling the appearance of liquidlike dynamics. They also demonstrate that the root-mean-squared displacement in the [111] direct...

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मुख्य लेखकों: Gaffney, K, Lindenberg, A, Larsson, J, Sokolowski-Tinten, K, Blome, C, Synnergren, O, Sheppard, J, Caleman, C, MacPhee, A, Weinstein, D, Lowney, D, Allison, T, Matthews, T, Falcone, R, Cavalieri, A, Fritz, D, Lee, S, Bucksbaum, P, Reis, D, Rudati, J, Macrander, A, Fuoss, P, Kao, C, Siddons, D, Pahl, R
स्वरूप: Journal article
भाषा:English
प्रकाशित: 2005
विवरण
सारांश:The melting dynamics of laser excited InSb have been studied with femtosecond x-ray diffraction. These measurements observe the delayed onset of diffusive atomic motion, signaling the appearance of liquidlike dynamics. They also demonstrate that the root-mean-squared displacement in the [111] direction increases faster than in the [110] direction after the first 500 fs. This structural anisotropy indicates that the initially generated fluid differs significantly from the equilibrium liquid.

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